Fuse structure and battery pack

Abstract

The utility model relates to the technical field of battery production, in particular to a fuse structure and a battery pack, and the fuse structure comprises a base, a fuse body, a first shell, a first terminal and a second terminal; the melt is fixedly mounted on the base; the first shell covers the outside of the melt and is rotatably mounted on the base; the first terminal is arranged on the first shell, is electrically connected with the melt and can rotate along with the first shell; the second terminal is installed on the first housing, is electrically connected with the melt, and can rotate along with the first housing. According to the arrangement direction of the switching piece, the cylindrical first shell can be driven by the hand of the human body to rotate around the axis of the first shell, and then the first terminal and the second terminal are driven to rotate so as to adjust the direction of the first terminal and the direction of the second terminal, so that the direction of the terminals is matched with the direction of the switching piece; and the universality of the fuse structure is effectively improved. And in addition, the layout of the fuse structure in the battery pack is not restrained by the layout of the adapter piece any more.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production, in particular to a fuse structure and a battery pack. Background Art

[0002] The fuse in the battery pack is a safety protection device, which is mainly used to protect the battery and the vehicle circuit to prevent battery overcharging, over-discharging, short circuit, overload and other faults. When the battery fails to work properly, the fuse will automatically cut off the circuit to prevent the battery from burning or exploding. Usually, the fuse is placed in the battery distribution box. As people's requirements for the energy density in the battery pack increase, the installation space reserved for the battery distribution box in the battery pack is getting smaller and smaller. In order to reduce the overall size of the battery distribution box and to avoid the battery distribution box being scrapped as a whole due to the scrapping of the fuse, the fuse began to be installed directly in the battery pack. In the battery pack, the adapter (adapter copper bus) used in conjunction with the fuse may be arranged in multiple directions and angles.

[0003] However, the existing fuses are not applicable to adapters arranged in multiple directions and angles, and have low versatility. Utility Model Content

[0004] The utility model provides a fuse structure and a battery pack, which are used to solve the problem that the existing fuse cannot be applied to adapters arranged in multiple directions and angles and has low versatility.

[0005] On the one hand, the utility model provides a fuse structure, comprising:

[0006] Pedestal;

[0007] The melt is fixedly mounted on the base;

[0008] A first shell, which covers the outside of the melt and is rotatably mounted on the base;

[0009] A first terminal is mounted on the first housing, electrically connected to the fuse, and can rotate with the first housing;

[0010] The second terminal is installed on the first shell, electrically connected to the fuse, and can rotate with the first shell.

[0011] In some embodiments, the first terminal is mounted on the first housing so as to be rotatable about its own axis;

[0012] And / or, the second terminal is mounted on the first housing so as to be rotatable around its own axis.

[0013] In some embodiments, the first terminal is electrically connected to the fuse through a first wire;

[0014] And / or, the second terminal is connected to the fuse via a second wire.

[0015] In some embodiments, it also includes:

[0016] A first adapter sheet is detachably mounted on the first terminal;

[0017] The second adapter is detachably mounted on the second terminal.

[0018] In some embodiments, it also includes:

[0019] A second housing, covering the connection between the first adapter and the first terminal;

[0020] The third housing is arranged to cover the connection between the second adapter plate and the second terminal.

[0021] In some of the embodiments, overlapping portions that can be overlapped with the first shell are provided on the second shell and the third shell.

[0022] In some embodiments, the first adapter is connected to the first terminal by screw connection;

[0023] The second adapter piece is connected to the second terminal in a screw connection manner.

[0024] In some embodiments, the first adapter plate, the second adapter plate, the first terminal, and the second terminal are made of copper.

[0025] In some of the embodiments, a mounting hole is provided on the base.

[0026] On the other hand, the utility model further provides a battery pack, comprising the fuse structure provided by any of the above embodiments.

[0027] The beneficial effects of the utility model are as follows: The fuse structure of the utility model is provided with a base, and the base can be installed on the inner bottom surface, inner top surface or inner side surface of the shell of the battery pack, so that the fuse structure can be installed on the inner bottom surface, inner top surface or inner side surface of the shell of the battery pack. When the current value flowing through the first terminal, the fuse and the second terminal exceeds the specified value, the fuse blows to disconnect the circuit. According to the arrangement orientation of the adapter, the cylindrical first shell can be driven by the human hand to rotate around its own axis, thereby driving the first terminal and the second terminal to rotate, so as to adjust the orientation of the first terminal and the second terminal, so that the orientation of the terminal matches the orientation of the adapter, which effectively improves the versatility of the fuse structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of some specific embodiments of a fuse structure of the utility model;

[0029] Figure 2 yes Figure 1Schematic diagram of the internal structure of the fuse structure shown.

[0030] In the drawings, 110, base; 120, fuse; 130, first shell; 141, first terminal; 142, second terminal; 151, first wire; 152, second wire; 161, first adapter; 162, second adapter; 171, second shell; 172, third shell. DETAILED DESCRIPTION

[0031] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] As mentioned in the background technology, usually, the fuse is arranged in the battery distribution box. As people's requirements for the energy density in the battery pack increase, the installation space reserved for the battery distribution box in the battery pack is getting smaller and smaller. In order to reduce the overall size of the battery distribution box, and at the same time to avoid the battery distribution box being scrapped as a whole due to the scrapping of the fuse, the fuse began to be installed directly in the battery pack. In the battery pack, the adapter (adapter copper bus) used in conjunction with the fuse may be arranged in multiple directions and angles. However, the existing fuses are not suitable for adapters arranged in multiple directions and angles, and have low versatility.

[0033] To solve the above problems, refer to Figure 1 and Figure 2On the one hand, the utility model provides a fuse structure, including a base 110, a fuse 120, a first shell 130, a first terminal 141 and a second terminal 142. The base 110 can be installed on the inner bottom surface, inner top surface or inner side surface of the shell of the battery pack to install the fuse structure on the inner bottom surface, inner top surface or inner side surface of the shell of the battery pack. The fuse 120 is fixedly installed on the base 110. The first shell 130 is covered on the outside of the fuse 120 and is rotatably installed on the base 110. The first terminal 141 is installed on the first shell 130, electrically connected to the fuse 120, and can rotate with the first shell 130. The second terminal 142 is installed on the first shell 130, electrically connected to the fuse 120, and can rotate with the first shell 130. When the current value flowing through the first terminal 141, the fuse 120 and the second terminal 142 exceeds the specified value, the fuse 120 is melted to disconnect the circuit. According to the layout of the adapter, the cylindrical first housing 130 can be driven by the human hand to rotate around its own axis, thereby driving the first terminal 141 and the second terminal 142 to rotate, so as to adjust the orientation of the first terminal 141 and the second terminal 142, so that the orientation of the terminal matches the orientation of the adapter, which effectively improves the versatility of the fuse structure. In addition, the layout of the fuse structure in the battery pack is no longer constrained by the layout of the adapter.

[0034] Preferably, a guide groove of a circular ring structure is provided on the base 110. The bottom end of the first shell 130 is installed in the guide groove so that the first shell 130 can rotate around its own axis.

[0035] Specifically, in the exemplary embodiment, the first terminal 141 is rotatably mounted on one side of the first housing 130 through a rotating seat, i.e., the first terminal 141 can rotate around the straight line where the axis of the fuse 120 is located. And / or, the second terminal 142 is rotatably mounted on the other side of the first housing 130 through another rotating seat, i.e., the second terminal 142 can rotate around the straight line where the axis of the fuse 120 is located. In this way, the first terminal 141 and the second terminal 142 can be driven by the human hand to rotate around their own axes according to the plane where the adapter is located, and the planes where the first terminal 141 and the second terminal 142 are located are adjusted so that the plane where the terminals are located matches the plane where the adapter is located, further improving the versatility of the fuse structure.

[0036] It should be noted that during the rotation of the first housing 130 , the first terminal 141 and the second terminal 142 , the melt 120 remains stationary.

[0037] Specifically, in the exemplary embodiment, the first terminal 141 is electrically connected to the fuse 120 via the first wire 151; and / or the second terminal 142 is electrically connected to the fuse 120 via the second wire 152. In this way, the first terminal 141 and the fuse 120 and the second terminal 142 and the fuse 120 are always electrically connected.

[0038] Specifically, the fuse structure also includes a long strip-shaped first adapter plate 161 and a long strip-shaped second adapter plate 162. The first adapter plate 161 is detachably mounted on the first terminal 141, and the second adapter plate 162 is detachably mounted on the second terminal 142. In some embodiments, the first adapter plate 161 is connected to the first terminal 141 by screw connection, and the second adapter plate 162 is connected to the second terminal 142 by screw connection. In other embodiments, the first adapter plate 161 is connected to the first terminal 141 by snap connection, and the second adapter plate 162 is connected to the second terminal 142 by snap connection. In yet other embodiments, the first adapter plate 161 is connected to the first terminal 141 by plug connection, and the second adapter plate 162 is connected to the second terminal 142 by plug connection. In other embodiments, the first adapter plate 161 is connected to the first terminal 141 by tape bonding, and the second adapter plate 162 is connected to the second terminal 142 by tape bonding. In this way, the first adapter plate 161 and the second adapter plate 162 can be easily disassembled, replaced, installed and used.

[0039] Preferably, the first adapter plate 161 , the second adapter plate 162 , the first terminal 141 , the second terminal 142 , the first wire 151 , and the second wire 152 are made of copper, which has good electrical conductivity.

[0040] Specifically, in the exemplary embodiment, the fuse structure further includes a second housing 171 and a third housing 172. The second housing 171 is disposed at the connection between the first adapter plate 161 and the first terminal 141, and the third housing 172 is disposed at the connection between the second adapter plate 162 and the second terminal 142, isolating the high-voltage connection point from the external environment to improve safety.

[0041] Preferably, a lap joint portion that can be overlapped with the top of the first shell 130 is provided at the top of the second shell 171, and a lap joint portion that can be overlapped with the top of the first shell 130 is provided at the top of the third shell 172. In this way, the stability of the connection between the second shell 171 and the first shell 130 and the third shell 172 and the first shell 130 is improved. The second shell 171 and the first shell 130 are connected by a detachable connection method such as snap connection, screw connection, plug connection or bonding. The third shell 172 and the first shell 130 are also connected by a detachable connection method such as snap connection, screw connection, plug connection or bonding.

[0042] Specifically, in the exemplary embodiment, a plurality of mounting holes are uniformly opened along the circumference on the edge of the circular base 110. Each mounting hole is a threaded hole, and the base 110 can be fixedly mounted on the inner bottom surface, inner top surface or inner side surface of the battery pack using screws and nuts through the mounting holes.

[0043] On the other hand, the utility model also provides a battery pack, including a fuse structure, wherein the base 110 of the fuse structure is mounted on the inner bottom surface, inner top surface or inner side surface of the shell of the battery pack. When the current value flowing through the first terminal 141, the fuse 120 and the second terminal 142 exceeds the specified value, the fuse 120 melts to disconnect the circuit. According to the arrangement orientation of the adapter, the cylindrical first shell 130 can be driven by the human hand to rotate around its own axis, thereby driving the first terminal 141 and the second terminal 142 to rotate, so as to adjust the orientation of the first terminal 141 and the second terminal 142, so that the orientation of the terminal matches the orientation of the adapter, thereby effectively improving the versatility of the fuse structure.

[0044] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0046] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0048] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A fuse structure, characterized in that: include: Pedestal; A melt, fixedly mounted on the base; A first shell, which is arranged to cover the outside of the melt and is rotatably mounted on the base; A first terminal, mounted on the first housing, electrically connected to the fuse, and capable of rotating with the first housing; The second terminal is installed on the first shell, electrically connected to the fuse, and can rotate with the first shell.

2. The fuse structure according to claim 1, characterized in that: The first terminal is mounted on the first housing so as to be rotatable around its own axis; And / or, the second terminal is mounted on the first housing so as to be rotatable around its own axis.

3. The fuse structure according to claim 1, characterized in that: The first terminal is electrically connected to the fuse through a first wire; And / or, the second terminal is connected to the fuse via a second wire.

4. The fuse structure according to any one of claims 1 to 3, characterized in that: Also includes: A first adapter sheet, detachably mounted on the first terminal; The second adapter is detachably mounted on the second terminal.

5. The fuse structure according to claim 4, characterized in that: Also includes: A second housing, covering the connection between the first adapter and the first terminal; The third housing is arranged to cover the connection between the second adapter plate and the second terminal.

6. The fuse structure according to claim 5, characterized in that: The second shell and the third shell are respectively provided with overlapping parts which can be overlapped with the first shell.

7. The fuse structure according to claim 4, characterized in that: The first adapter is connected to the first terminal by screw connection; The second adapter piece is connected to the second terminal in a screw connection manner.

8. The fuse structure according to claim 4, characterized in that: The first adapter plate, the second adapter plate, the first terminal and the second terminal are made of copper.

9. The fuse structure according to claim 4, characterized in that: The base is provided with a mounting hole.

10. A battery pack, characterized in that: The invention comprises the fuse structure as claimed in any one of claims 1 to 9.

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